Double-hung window structure



Oct. 30, 1956 Filed May 20, 1955 J. A. SKANNEL ET AL 2,768,715

DOUBLE-HUNG WINDOW STRUCTURE 2 Sheets-Sheet J INVENTOR.

- JAMES A. SKANNEL BY ARRWON ATTORNEY United States Patent DOUBLE-HUNG WINDOW STRUCTURE James A. Skannel, Lindenhurst, and Arron Benton, Northport, N. Y.

Application May 20, 1955, Serial No. 509,914

4 Claims. (Cl. 189-72) This invention relates to double hung window structures and particularly those employing aluminum frames and sashes. Presently known double hung windows employing aluminum frames and sashes are prone to operational failure due to jamming. Highly complicated structures have been devised for the purpose of maintaining such windows at their adjusted positions so that they will not slide closed or move into an undesired position.

Accordingly, it is an object of the present invention to provide a double hung window which will operate easily and Without jamming.

Another object of the present invention is to provide a double hung window which will remain in position as adjusted without the need for sash weights, cord, or the like.

A further object of the present invention is to provide a double hung window which may be installed with ease and removed from the frame for cleaning or repair purposes without the need for complicated or expert operations.

A feature of the present invention is its use of a friction strip between the sliding portion of the window sash and the fixed portions of the frame.

Another feature of the present invention is its use of a beveled track upon which the sash slides.

A further feature of the present invention is its small number of parts which provide an inexpensive structure.

The invention consists of the construction, combination and arrangement of parts, as herein illustrated, described and claimed.

In the accompanying drawing, forming a part hereof is illustrated one form of embodiment of the invention and in which:

Figure 1 is a somewhat exploded View of the complete embodiment of the present invention taken from within the building.

Figure 2 is a vertical section taken on line 2-2 in Figure 1 somewhat enlarged with the elements assembled.

Figure 3 is a vertical section taken on line 3-3 in Figure 1 somewhat enlarged looking in the direction of the arrows showing the elements assembled.

Figure 4 is a vertical section taken on line 4-4 in Figure l somewhat enlarged looking in the direction of the arrows with the elements assembled.

Figure 5 is a horizontal section taken on line 55 in Figure 1 looking in the direction of the arrows with the elements assembled.

Figure 6 is a view similar to Figure 5 taken on line 6-6 in Figure 1 somewhat enlarged.

Referring to the drawings and particularly to Figures 1 and 2, 10 indicates the sash of a window having a top or head member 11, a bottom or sill member 12 and spaced track members 13 therebetween. The track members 13 are provided with channels 14 for the purpose of receiving sash members 15 and 16. The upper sash 15 slides upon the outermost pair of channels and the lower sash 16 slides upon the inner pair of channels 14. The track members 13 may be set into the wood (not shown) 2,768,715 Patented Oct. 30, 1956 or masonry of the building in any conventional manner.

The head 11 and sill 12 may be provided with resilient strips 18 which strips underlie the bottom sash 16 and overlie the top sash 15 for the purpose of providing weather proofing along the edges of said sashes.

Referring to Figure 5 it will be seen that the channel members 14 are provided with inwardly disposed bevels 19 on the sash receiving edges thereof. The bevels 19 are in eifect bearing surfaces and are disposed at an angle of between 30 to 45 degrees with the vertical. It has been found that an angle of less than 30 degrees results in the windows jamming and being difficult to slide up and down the channels 14 whereas, an angle greater than 45 degrees may result in windows being blown out of the frames under conditions of high winds.

The sashes 15, 16, are provided with glass 20 and an elongated substantially Ushaped shoe 21 is slipped upon the right hand edge of each of the panes of glass 20. The edge of the shoe 21 nearest the channels 14 is somewhat T-shaped and of a frusto conical cross section the tapered sides of which are formed so as to fit between the bevels 19 of the channel members 14.

A zinc friction strip 22 is snapped over the T-shaped end of the shoe 21 and is secured in place by the inwardly disposed edge 23 of the strip 22 grasping a rearwardly disposed bead 24 upon each edge of the shoe 21.

The zinc strip 22 is interposed between the bevels 19 and the shoe 21 so as to provide a friction inducing surface between the sash and the frame. As a result of the reluctance of zinc to slide across aluminum, the window sashes 15, 16, will remain in position wherever they may be adjusted.

Figure 6 shows the lefthand edges of the window sashes 15, 16, which are provided with U-shaped channel members 28 slipped upon the vertical edges of the glass 20. The channel members 28 are slidably received within the lefthand shoe member 25. The shoe member 25 is also somewhat T-shaped and tapered to conform to the bevels 19 of the channel members 14. Here again, a zinc friction strip 22 is interposed between the shoe 25 and the bevels 19 of the channels 14. The U-shaped channel members 28 are held away from the bottom of the interior of the shoe member 25 by means of flat springs 26. The flat springs 26 are held captive within the assembly by means of the arms 27 (see Figure 1) located at the top and bottom of the lefthand edge of each sash. The arm 27 combines the shoes 25, springs 26, and strip 22 into an assembly (best shown in Figure 6) which permits the sashes 15, 16, to be removed from the frames 10. Removal of the windows is accomplished by forcing them against the flat springs 26 so as to compress the springs within the area between the channel members 28 and the shoes 25. The arms 27 which are of a width which will enable them to pass between the beveled edges of the channel members 14, will enter the space between the channel members 14 and assume the position indicated by the dashed lines in Figure 6. The U-shaped member 28 will thus slide within the shoe member 25 until it has compressed the springs 26. The opposite edge of the sash 15 or 16 may then be swung clear of the channel member bevel 19 and removed from the frame 10. When the entire sash is removed from the frame 16 the arms 27 hold the friction strip 22 and the springs 26 within the complete assembly so that they cannot be lost or damaged.

The top sash 15 is provided with a top channel member 29 which is slipped upon the upper edge of the glass 26. The top channel member 29 has weather strip receiving flanges 3t) thereon (best shown in Figure 2). The opposite or bottom edge of the sash 15 is provided with a channel member 31 which has an outwardly disposed meeting rail integral therewith. The meeting rail 32 shown in Figure 3, is adapted to embrace a complementary meeting rail 34 which is secured to the top channel member 33 of the lower sash 16. The top channel member 33 overlies the upper edge of the glass of the lower sash 16. The lower edge of the bottom sash E6 is provided with a bottom channel member 35 which has downwardly extending weather strip embracing flanges 36 integral therewith and inwardly disposed hand holds 37 for raising and lowering the sash 16.

From the foregoing it will be seen that there has been provided a double hung aluminum window construction which is easy to install, easy to remove, i cleaning or repair purposes and which comprises a minimum number of parts thereby eliminating many of the difficulties of maintenance and repair.

By eliminating the complete metal frame employed on presently known aluminum windows and substituting the spaced track members which can be used with wooden head and sill members the danger of damage during shipment and while at the building site is greatly diminished. Since the spaced track members can be used in connection with Wooden structural members the installation of the presently disclosed device requires less skill and precision in fitting than would be needed in the case of a complete window frame.

Having thus fully described the invention, what is claimed as new and desired to be secured by Letters Patent of the United States, is:

l. A double hung window assembly comprising, spaced metal track members, a plurality of window receiving channels on each of the track members, bevel shaped bearing surfaces on the inner edges of each window receiving channel, a window pane slidably received between the bevels of each of the said channels, a fixed shoe member on one vertical edge of the pane, a substantially U- shaped channel member on the opposite vertical edge of the pane, a second shoe member overlying the U-shaped channel member, spring means carried within the second shoe between the channel and the interior of said shoe, a friction strip between each of the shoes and the beveled faces of the channels and arm members at'the top and bottom of the spring loaded side of each pane whereby the second shoe, friction strip, spring and U-shaped channel members are held in assembled relationship at the opposite vertical edge of the pane and the fixed shoe and its friction strip are held in assembled relationship at the one vertical edge of the pane.

2. A double hung window assembly comprising, spaced metal track members, a plurality of window receiving channels on each of the track members, bevel shaped bearing surfaces on the inner edges of each window receiving channel, a window pane slidably received between the bevels of each of the said channels, a substantially T-shaped fixed shoe member on one vertical edge of the pane, the arms of said T-shaped member being cut away to conform to the shape of the bevels, a substantially U-shaped channel member on the opposite vertical edge of the pane, a substantially T-shaped second shoe member overlying the U-shaped channel member, the arms of said T being cut away to conform to the shape of the bevels, spring means carried within the second shoe between each of the shoes and the beveled faces of the channels and arm members at the top and bottom of the spring loaded side of each pane whereby the second shoe, friction strip, springs and U-shaped channel members are held in assembled relationship at the opposite vertical edge of the pane and the fixed shoe and its friction strip are held in assembled relationship at the one vertical edge or the 3. A double hung window assembly comprising, spaced aluminum track members, a plurality of window receiving channels on each of the track members, bevel shaped bearing surfaces on the inner edges of each window receiving channel, a window pane slidably received between the bevels of each of the said channels, a fixed shoe member on one vertical edge of the pane, a substantially U- shaped channel member on the opposite vertical edge of the pane, a second shoe member overlying the U-shaped channel member, spring means carried within the second shoe between the channel and the interior of said shoe, a Zinc friction strip between each of the shoes and the beveled faces of the channels and arm members at the top and bottom of the spring loaded side of each pane whereby the second Shoe, friction strip, springs and U- shaped channel members are held in assembled relationship at the opposite vertical edge of the pane and the fixed shoe and its friction strip are held in assembled relationship at the one vertical edge of the pane.

4. A double hung window assembly comprising, spaced metal track members, a plurality of window receiving channels on each of the track members, bevel shaped bearing surfaces on the inner edges of each Window receiving channel, said bevels forming an angle of not less than 30 nor more than 45 with the normal to the bottom of said channel, a window pane slidably received between the bevels of each of the said channels, a fixed shoe member on one vertical edge of the pane, a substantially U-shaped channel member on the opposite edge of the pane, a second shoe member overlying the U- shaped channel member, spring means carried within the second shoe between the channel and the interior of said shoe, a friction strip between each of the shoes and the beveled faces of the channels and arm members at the top and bottom of the spring loaded side of each pane whereby the second shoe, friction strip, spring and U- shaped channel members are held in assembled relationship at the opposite vertical edge of the pane and the fixed shoe and its friction strip are held in assembled relationship at the one vertical edge of the pane.

References Cited in the file of this patent UNITED STATES PATENTS 2,643,422 Gottchalk June 30, 1953 

